Optical Brightener KSN
Hosea Chem® supplies Optical Brightener KSN, CAS 5242-49-9, a benzoxazole-based fluorescent brightener widely used in plastics, polymers and synthetic fibers with bulk supply from China. Send Inquiry
Product Description
Optical Brightener KSN, CAS 5242-49-9
Optical Brightener KSN is a benzoxazole-based fluorescent whitening agent with the chemical name 4-(2-Benzoxazolyl)-4'-(5-methyl-2-benzoxazolyl)stilbene. It is also known as Fluorescent Brightener KSN, Fluorescent Brightener KS-N, Fluorescent Brightener 368, FBA 368 and Optical Brightener 368.
Product Chemical Properties
Chemical Name: 4-(2-Benzoxazolyl)-4'-(5-methyl-2-benzoxazolyl)stilbene
Product Name: Optical Brightener KSN
CAS No.: 5242-49-9
Synonyms: Fluorescent Brightener KSN, Fluorescent Brightener KS-N, Fluorescent Brightener 368, FBA 368, Optical Brightener 368, Optical Brightening Agent KSN, 2-[4-[2-[4-(2-benzoxazolyl)phenyl]ethenyl]phenyl]-5-methylbenzoxazole
EC No.: 226-044-2
Molecular Formula: C29H20N2O2
Molecular Weight: 428.48 g/mol
Chemical Type: Benzoxazole Fluorescent Brightener
Main Function: Optical Brightener / Fluorescent Whitening Agent
Product Technical Specification
Appearance: Yellowish-green powder
Purity: ≥98.5%
Fineness: greater than 200 mesh
Volatile matter: ≤0.5%
Ash content: ≤0.5%
Applications of Optical Brightener KSN
1. Suitable for the whitening of fibers (such as polyester, polyamide, and polyacrylonitrile), silk fabrics, and wool textiles.
2. Widely used in films, injection-molded parts, and extruded materials; suitable for the processing of all types of plastics.
3. Highly suitable for whitening synthetic polymers at any processing stage, including the polymerization stage.
4. Low dosage requirement combined with high whitening intensity; excellent whitening effects are achieved with very small amounts.
5. Broad applicability; widely used for whitening chemical fibers (such as polyester) and various plastics.
6. Exhibits good compatibility with plastics, high-temperature stability, and excellent light and weather resistance.
Packaging
25kg/carton.
Production Capacity
8000MT/year.
Storage Requirements
Store Optical Brightener KSN in tightly sealed original containers in a cool, dry and well-ventilated area.
Protect the product from moisture, excessive heat and direct sunlight.
Keep containers properly closed when not in use.
Optical Brightener KSN Bulk Supply from China
Hosea Chem® supplies Optical Brightener KSN, CAS 5242-49-9, also known as Fluorescent Brightener 368, Fluorescent Brightener KS-N, FBA 368 and 4-(2-Benzoxazolyl)-4'-(5-methyl-2-benzoxazolyl)stilbene, for plastics, synthetic fibers and other polymer applications.